In this note we would like to point out that the lower bound estimator of the frequency of hidden units in a target population, developed by Chao in ecology, was developed independently in astro-physics and has been used to estimate the size of flare stars in the Pleiades.
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Böhning, D. Chao’s lower bound estimator and the size of the Pleiades. Environ Ecol Stat 27, 171–173 (2020). https://doi.org/10.1007/s10651-020-00440-w
- Chao’s lower bound estimator
- Estimating the number of flare stars
- Dark number estimation in astro-physics